hidl: Add standard timed_out vibrator service

Change-Id: I48164e9adfa52cd223c5a2925fa3b48417a6e50c
diff --git a/hidl/vibrator/Vibrator.h b/hidl/vibrator/Vibrator.h
new file mode 100644
index 0000000..aba75f5
--- /dev/null
+++ b/hidl/vibrator/Vibrator.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H
+#define ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H
+
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+#include <hidl/Status.h>
+
+#include <fstream>
+
+#define INTENSITY_MIN 1000
+#define INTENSITY_MAX 10000
+#define INENSITY_DEFAULT INTENSITY_MAX
+
+#define CLICK_TIMING_MS 20
+
+#define VIBRATOR_TIMEOUT_PATH "/sys/class/timed_output/vibrator/enable"
+#define VIBRATOR_INTENSITY_PATH "/sys/class/timed_output/vibrator/intensity"
+
+namespace android {
+namespace hardware {
+namespace vibrator {
+namespace V1_3 {
+namespace implementation {
+
+using android::hardware::vibrator::V1_0::EffectStrength;
+using android::hardware::vibrator::V1_0::Status;
+
+class Vibrator : public IVibrator {
+  public:
+    Vibrator();
+
+    // Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
+    Return<Status> on(uint32_t timeoutMs) override;
+    Return<Status> off() override;
+    Return<bool> supportsAmplitudeControl() override;
+    Return<Status> setAmplitude(uint8_t amplitude) override;
+    Return<void> perform(V1_0::Effect effect, EffectStrength strength,
+                         perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_1::IVibrator follow.
+    Return<void> perform_1_1(V1_1::Effect_1_1 effect, EffectStrength strength,
+                             perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_2::IVibrator follow.
+    Return<void> perform_1_2(V1_2::Effect effect, EffectStrength strength,
+                             perform_cb _hidl_cb) override;
+
+    // Methods from ::android::hardware::vibrator::V1_3::IVibrator follow.
+    Return<bool> supportsExternalControl() override;
+    Return<Status> setExternalControl(bool enabled) override;
+    Return<void> perform_1_3(Effect effect, EffectStrength strength, perform_cb _hidl_cb) override;
+
+  private:
+    Return<void> perform(Effect effect, EffectStrength strength, perform_cb _hidl_cb);
+    template <typename T>
+    Return<void> perform(T effect, EffectStrength strength, perform_cb _hidl_cb);
+    Status enable(bool enabled);
+    Status activate(uint32_t ms);
+
+    static uint32_t effectToMs(Effect effect, Status* status);
+    static uint8_t strengthToAmplitude(EffectStrength strength, Status* status);
+
+    bool mEnabled{false};
+    uint8_t mAmplitude{UINT8_MAX};
+    bool mExternalControl{false};
+    std::mutex mMutex;
+    timer_t mTimer{nullptr};
+
+    bool mIsTimedOutVibriator;
+    bool mhasTimedOutIntensity;
+};
+
+}  // namespace implementation
+}  // namespace V1_3
+}  // namespace vibrator
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_VIBRATOR_V1_3_VIBRATOR_H